Scheduled to float on the London Stock Exchange by 2018, the firm registered year-to-date cash flows of £4.1bn compared to £4.6bn for the same period in 2015.
The decrease was blamed on market weakness – despite the domestic market’s current lofty heights – and continued uncertainty following the outcome of the EU referendum in June.
However, year-to-date gross sales increased by 9% to £16.7bn, attributed to strong flows into Old Mutual Global Investors.
Funds under management have grown by 14% since the start of the year to £119bn.
Since the end of last year, platform funds under management increased by 14% to £40bn. Old Mutual Global Investors’ assets grew by 16% to £29bn and Quilter Cheviot grew by 11% to £20bn.
“We have continued to grow our business and our market share despite the challenging markets which have prevailed for much of 2016,” said Feeney.
“We expect markets to remain difficult for some time given the uncertain conditions surrounding the UK’s exit from the European Union.
“We are seeing early signs that our customers are regaining confidence and returning back to risk assets, albeit tentatively. However, we believe that our focus on staying close to our customers at all times will help us maintain our market leading position.”
In terms of upcoming seperation costs, in a stock market announcement, Old Mutual Wealth also said it would cost between £50m to £65m for winding down its head office and activities in London.